The Collapse All plugin enhances Obsidian's ability to collapse and expand content within various views. It introduces bindable commands for collapsing, expanding, and toggling views, all of which can be accessed via the command palette or assigned to hotkeys. The plugin supports multiple areas, including the File Explorer, Tag Pane, Search, and Bookmarks. Users can control these views individually or apply the commands globally to affect all supported views simultaneously. The added functionality makes it easier to organize and manage large vaults by quickly collapsing or expanding content, providing greater control over the visibility of files, tags, and search results.